Book excerpt: This vintage book contains a concise guide to mule-breeding canaries and finches, with a specific focus on breeding for appearance and song. This volume contains all the information an existing or prospective breeder might need to know on the subject, and it would make for a useful addition to collections of aviculture literature. The chapters of this book include: “Uncertainties of Mule Breeding”, “Good Mules”, “Influence of Parents on the Progeny”, “Goldfinch and Canary Mules”, “Sib-Bred Birds”, “Cheverell and Pea-throat Goldfinches”, “Canaries for Mule-Breeding”, “Double-Yellows”, “Double-Buffs”, etcetera. Many antiquarian books such as this are increasingly hard to come by and expensive, and it is with this in mind that we are republishing this book now in an affordable, modern, high quality edition. It comes complete with a specially commissioned new introduction on aviculture.